Add countTimers method

Closes #213
sinonjs · Oct 7, 2018 · 3ff4935 · 3ff4935
1 parent d4c2c05
commit 3ff4935
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diff --git a/src/lolex-src.js b/src/lolex-src.js
@@ -257,7 +257,6 @@ function withGlobal(_global) {
         return timer.id;
     }
 
-
     /* eslint consistent-return: "off" */
     function compareTimers(a, b) {
         // Sort first by absolute timing
@@ -574,6 +573,10 @@ function withGlobal(_global) {
             return clearTimer(clock, timerId, "Immediate");
         };
 
+        clock.countTimers = function countTimers() {
+            return Object.keys(clock.timers).length;
+        };
+
         clock.requestAnimationFrame = function requestAnimationFrame(func) {
             var result = addTimer(clock, {
                 func: func,

diff --git a/test/lolex-test.js b/test/lolex-test.js
@@ -432,6 +432,22 @@ describe("lolex", function () {
 
     });
 
+    describe("countTimers", function () {
+
+        beforeEach(function () {
+            this.clock = lolex.createClock();
+        });
+
+        it("counts remaining timers", function () {
+            this.clock.setTimeout(NOOP, 100);
+            this.clock.setTimeout(NOOP, 200);
+            this.clock.setTimeout(NOOP, 300);
+            this.clock.tick(150);
+            assert.equals(this.clock.countTimers(), 2);
+        });
+
+    });
+
     describe("tick", function () {
 
         beforeEach(function () {